Einsteni

Einsteni (Es)

chemical element with the atomic number of 99
Atomic Number99
Atomic Weight252
mass number239
Group
Period7
Blockf
protoni99 p+
nyutroni140 n0
elektroni99 e-
Animated Bohr model of Es (Einsteni)

Physical Property

Atomic Radius
molar volume
Covalent Radius
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
msongamano

Chemical Property

nishati
proton affinity
electron affinity
ionization energy
ionization energy of Es (Einsteni)
enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
elektroni
Mzingo elektroni2, 8, 18, 32, 29, 8, 2
Bohr model: Es (Einsteni)
valence electron2
Lewis structure: Es (Einsteni)
electron configuration[Rn] 5f11 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f11 7s2
Enhanced Bohr model of Es (Einsteni)
Orbital Diagram of Es (Einsteni)
oxidation number2, 3, 4
electronegativity
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
Kiwango utatu
appearance
Rangi
Colorless
appearancesilver-colored
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
electrical conductivity
electrical resistivity
superconductivity
Uga sumaku
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
Néel temperature
structure
Crystal Structure ()
lattice constant
Lattice Angles
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
speed of sound
classification
CategoryActinides, Actinides
CAS Group
IUPAC Group
Glawe Number43
Mendeleev Number34
Pettifor Number38
Geochemical Class
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotrope
Neutron cross section
160
Neutron Mass Absorption
quantum number5I15/2
space group ()

Isotopes of Einsteinium

Stable Isotopes0
Unstable Isotopes20
Natural Isotopes0

239Es

mass number239
neutron number140
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin3/2
nuclear quadrupole moment
Uvumbuzi
parity-

hali ya kuozaintensity
α (α emission)
β+ (β+ decay; β+ = ϵ + e+)
SF (spontaneous fission)

240Es

mass number240
neutron number141
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
6 ± 1.7 s
spin4
nuclear quadrupole moment
Uvumbuzi2017
parity-

hali ya kuozaintensity
α (α emission)70%
β+ (β+ decay; β+ = ϵ + e+)30%
β+ SF (β+-delayed fission)0.16%

241Es

mass number241
neutron number142
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
5.1 ± 0.8 s
spin3/2
nuclear quadrupole moment
Uvumbuzi1996
parity-

hali ya kuozaintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)

242Es

mass number242
neutron number143
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
17.8 ± 1.6 s
spin2
nuclear quadrupole moment
Uvumbuzi1994
parity+

hali ya kuozaintensity
α (α emission)57%
β+ (β+ decay; β+ = ϵ + e+)43%
β+ SF (β+-delayed fission)0.6%

243Es

mass number243
neutron number144
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
22.1 ± 1.4 s
spin7/2
nuclear quadrupole moment
Uvumbuzi1973
parity+

hali ya kuozaintensity
α (α emission)61%
β+ (β+ decay; β+ = ϵ + e+)
SF (spontaneous fission)1%

244Es

mass number244
neutron number145
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
37 ± 4 s
spin6
nuclear quadrupole moment
Uvumbuzi1973
parity+

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)95%
α (α emission)5%
β+ SF (β+-delayed fission)0.011%

245Es

mass number245
neutron number146
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
1.11 ± 0.06 m
spin3/2
nuclear quadrupole moment
Uvumbuzi1967
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)51%
α (α emission)49%

246Es

mass number246
neutron number147
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
7.5 ± 0.5 m
spin4
nuclear quadrupole moment
Uvumbuzi1954
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)90.1%
α (α emission)9.9%
β+ SF (β+-delayed fission)0.003%

247Es

mass number247
neutron number148
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
4.55 ± 0.26 m
spin7/2
nuclear quadrupole moment
Uvumbuzi1967
parity+

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)93%
α (α emission)7%
SF (spontaneous fission)

248Es

mass number248
neutron number149
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
24 ± 3 m
spin2
nuclear quadrupole moment
Uvumbuzi1956
parity-

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.25%
β+ SF (β+-delayed fission)3.5%

249Es

mass number249
neutron number150
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
102.2 ± 0.6 m
spin7/2
nuclear quadrupole moment
Uvumbuzi1956
parity+

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.57%

250Es

mass number250
neutron number151
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
8.6 ± 0.1 h
spin6
nuclear quadrupole moment
Uvumbuzi1956
parity

hali ya kuozaintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)

251Es

mass number251
neutron number152
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
33 ± 1 h
spin3/2
nuclear quadrupole moment
Uvumbuzi1956
parity-

hali ya kuozaintensity
ϵ (electron capture)99.5%
α (α emission)0.5%

252Es

mass number252
neutron number153
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
471.7 ± 1.9 d
spin4
nuclear quadrupole moment
Uvumbuzi1956
parity+

hali ya kuozaintensity
α (α emission)78%
ϵ (electron capture)22%

253Es

mass number253
neutron number154
Relative Atomic Mass
g-factor
1.1714285714286 ± 0.02
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
20.47 ± 0.03 d
spin7/2
nuclear quadrupole moment
6.7 ± 0.8
Uvumbuzi1954
parity+

hali ya kuozaintensity
α (α emission)100%
SF (spontaneous fission)8.7%

254Es

mass number254
neutron number155
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
275.7 ± 0.5 d
spin7
nuclear quadrupole moment
Uvumbuzi1954
parity+

hali ya kuozaintensity
α (α emission)100%
ϵ (electron capture)
β (β decay)1.74%
SF (spontaneous fission)3%

255Es

mass number255
neutron number156
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
39.8 ± 1.2 d
spin7/2
nuclear quadrupole moment
Uvumbuzi1954
parity+

hali ya kuozaintensity
β (β decay)92%
α (α emission)8%
SF (spontaneous fission)0.0041%

256Es

mass number256
neutron number157
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
7.6 h
spin7
nuclear quadrupole moment
Uvumbuzi1976
parity+

hali ya kuozaintensity
β (β decay)100%
β SF (β-delayed fission)0.002%

257Es

mass number257
neutron number158
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
7.7 ± 0.2 d
spin7/2
nuclear quadrupole moment
Uvumbuzi1987
parity+

hali ya kuozaintensity
β (β decay)100%
α (α emission)

258Es

mass number258
neutron number159
Relative Atomic Mass
g-factor
natural abundance
Unururifu☢️ radioactive element
Nusumaisha
spin
nuclear quadrupole moment
Uvumbuzi
parity

hali ya kuozaintensity
β (β decay)
α (α emission)
Einsteinium

historia

mgunduzi au mvumbuziArgonne, Los Alamos, U of Calif
location of discoveryUnited States
Uvumbuzi1952
EtimolojiaNamed in honor of the scientist Albert Einstein.
pronunciationine-STINE-i-em (Kiingereza)

source

Abundance
Abundance in Earth's crust
natural abundance (Bahari)
natural abundance (Mwili)
0 %
natural abundance (Kimondo)
0 %
natural abundance (Jua)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants